Title :
Case study of ferroresonance in 33 kV distribution network of PEA Thailand
Author :
Laohacharoensombat, Kesinee ; Tuitemwong, Kamphol ; Jaruwattanadilok, Sermchai ; Wattanasakpubal, Choowong ; Kleebmek, Kritsada
Author_Institution :
Provincial Electr. Authority, Bangkok, Thailand
Abstract :
This paper presents a study of the ferroresonance phenomena occurring on 33 kV PEA (Provincial Electricity Authority) distribution network in Satun province. The installations of 1000 kVA and 500 kVA delta-wye transformers, 300 meters underground cable and capacitor in the low side of the transformers cause the overvoltage while then are single-phase or two phase switching events. The result of overvoltage damages surge arresters that are installed at the both transformers and the connection point between partial insulated conductor (PIC) and underground cable in several times. The analysis is made by ATP-EMTP simulation compare with experimental events. The purposed solutions of this problem are determined on the simulation and field test result.
Keywords :
arresters; ferroresonance; overvoltage protection; power distribution protection; power engineering computing; power transformer protection; underground cables; 1000 kVA; 300 m; 33 kV; 500 kVA; ATP-EMTP simulation; PEA Thailand; Provincial Electricity Authority; capacitor; delta-wye transformers; distribution network; ferroresonance; overvoltage; partial insulated conductor; surge arresters; underground cable; Arresters; Cable insulation; Capacitors; Conductors; Ferroresonance; Power cable insulation; Power cables; Power transformer insulation; Surges; Voltage control;
Conference_Titel :
TENCON 2004. 2004 IEEE Region 10 Conference
Print_ISBN :
0-7803-8560-8
DOI :
10.1109/TENCON.2004.1414796
